loop5: detected capacity change from 0 to 4096 ------------[ cut here ]------------ ret == -ENOENT WARNING: fs/nilfs2/btree.c:2356 at nilfs_btree_mark+0x1c9/0x210 fs/nilfs2/btree.c:2356, CPU#0: syz.5.2019/13914 Modules linked in: CPU: 0 UID: 0 PID: 13914 Comm: syz.5.2019 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:nilfs_btree_mark+0x1c9/0x210 fs/nilfs2/btree.c:2356 Code: 48 8b 05 fa 0d 70 0f 48 3b 44 24 10 75 26 89 e8 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d e9 c9 1e 64 fd cc e8 b8 7e 19 fe 90 <0f> 0b 90 bd fe ff ff ff eb c3 e8 08 7f 02 08 44 89 f1 80 e1 07 80 RSP: 0018:ffffc900034d75b0 EFLAGS: 00010283 RAX: ffffffff83ac2248 RBX: ffff888052d15a00 RCX: 0000000000080000 RDX: ffffc9000ebd1000 RSI: 0000000000000d82 RDI: 0000000000000d83 RBP: 00000000fffffffe R08: 0000000000000341 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed100a5a2c13 R12: ffff88806a42f1f0 R13: dffffc0000000000 R14: ffff88806a42f1b8 R15: fffffffffffffff8 FS: 00007f9307a016c0(0000) GS:ffff88812545d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055558f8af9e8 CR3: 000000004b813000 CR4: 0000000000350ef0 Call Trace: nilfs_bmap_mark+0xba/0x180 fs/nilfs2/bmap.c:402 nilfs_ioctl_mark_blocks_dirty fs/nilfs2/ioctl.c:764 [inline] nilfs_ioctl_prepare_clean_segments+0x49a/0x800 fs/nilfs2/ioctl.c:799 nilfs_clean_segments+0x18c/0xa50 fs/nilfs2/segment.c:2525 nilfs_ioctl_clean_segments fs/nilfs2/ioctl.c:916 [inline] nilfs_ioctl+0x261f/0x2780 fs/nilfs2/ioctl.c:1346 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9306b9c799 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9307a01028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f9306e15fa0 RCX: 00007f9306b9c799 RDX: 0000200000000640 RSI: 0000000040786e88 RDI: 0000000000000004 RBP: 00007f9306c32c99 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f9306e16038 R14: 00007f9306e15fa0 R15: 00007ffd8dee02f8